I used to see Heathcliff and the Cadillac Cats in syndication every afternoon in the early 90's and loved it. Miss that one too.
I used to miss Gummi Bears, but my daughters got of age and I purchased the DVD sets, and they quickly became one of their favorites so I got to see them all again too!
I miss those days of coming in after school and settling down to watch G.I. Joe and Masters of the Universe in syndication every day.
I also miss good days of USA's Cartoon Express on Sunday mornings when they featured Scooby-Doo Where Are You, Jem, Turbo Teen, Dyno-Mutt & Blue Falcon, Space Ghost, and Superfriends. That was a great block of cartoon back in the day.
Last year, I made a custom Saturday morning DVD, and the kids and I spent a Saturday morning like I did in my youth. We sat in pj's, ate fruity pebbles and watched episodes of The Smurfs, The Snorks, Gummi Bears, Muppet Babies, Hulk Hogan's Rock & Wrestling, He-Man, Mr. T, and Dungeons and Dragons. I also threw in 80's commercials between each episode to give it a nice retro feel. We all loved it. Kids these days don't have to wait for that one day of the week to see cartoons like we did, so they don't have that sentimental attachment to those days when your week revolved around Saturday mornings.
I also have a custom Christmas DVD that we do the same thing with that features the Smurfs Christmas Special, He-Man & She-Ra Christmas Special, Looney Tunes Christmas, California Raisins Chrismas Songs, and the complete original Mickey's Christmas Carol and the other Disney cartoons that were shown with it like Pluto's Christmas Tree. I also threw Christmas commercials in between the features like the one with Ronald McDonald and the kids skating on the frozen pond and the classic Folgers commercial where the son comes home for Christmas. We pop that in each year and make a family night of watching the whole thing while eating popcorn and such around the holidays.
My goodness, there is so much I miss.